KR20080111404A - 전기 광학 장치 및 전자 기기 - Google Patents
전기 광학 장치 및 전자 기기 Download PDFInfo
- Publication number
- KR20080111404A KR20080111404A KR1020080056843A KR20080056843A KR20080111404A KR 20080111404 A KR20080111404 A KR 20080111404A KR 1020080056843 A KR1020080056843 A KR 1020080056843A KR 20080056843 A KR20080056843 A KR 20080056843A KR 20080111404 A KR20080111404 A KR 20080111404A
- Authority
- KR
- South Korea
- Prior art keywords
- voltage
- circuit
- battery
- input
- driver
- Prior art date
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
- G09G3/34—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source
- G09G3/36—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source using liquid crystals
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
- G09G3/34—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source
- G09G3/36—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source using liquid crystals
- G09G3/3611—Control of matrices with row and column drivers
- G09G3/3696—Generation of voltages supplied to electrode drivers
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G2320/00—Control of display operating conditions
- G09G2320/06—Adjustment of display parameters
- G09G2320/0626—Adjustment of display parameters for control of overall brightness
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G2330/00—Aspects of power supply; Aspects of display protection and defect management
- G09G2330/02—Details of power systems and of start or stop of display operation
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G2330/00—Aspects of power supply; Aspects of display protection and defect management
- G09G2330/02—Details of power systems and of start or stop of display operation
- G09G2330/021—Power management, e.g. power saving
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Computer Hardware Design (AREA)
- Crystallography & Structural Chemistry (AREA)
- Chemical & Material Sciences (AREA)
- Nonlinear Science (AREA)
- Mathematical Physics (AREA)
- Optics & Photonics (AREA)
- Control Of Indicators Other Than Cathode Ray Tubes (AREA)
- Liquid Crystal Display Device Control (AREA)
- Liquid Crystal (AREA)
Abstract
Description
Claims (5)
- 배터리의 전압이 직접 입력되는 전기 광학 장치로서,표시 패널과,입력된 전압을 증폭하여 상기 표시 패널에 공급하는 드라이버와,상기 배터리로부터 입력된 전압을, 각각 다른 전압으로 변환하여 상기 드라이버에 공급하는 복수의 변환 회로와, 상기 배터리로부터 입력된 전압을, 상기 복수의 변환 회로 중, 어느 변환 회로에 공급할지를 전환하는 전환 장치와, 상기 전환 장치를 제어하는 제어 회로를 갖는 전압 조정 회로를 구비하되,상기 드라이버는, 상기 입력된 전압이 변화한 것을 검지한 경우에 있어서, 상기 입력된 전압에 따른 전압 증폭률에 따라 증폭한 전압을 상기 표시 패널에 공급함과 아울러, 전압 증폭률 변화를 나타내는 제어 신호를 상기 제어 회로에 공급하고,상기 제어 회로는, 상기 전압 증폭률 변화를 나타내는 제어 신호를 수신하면, 상기 전환 장치를 제어하여, 상기 배터리로부터 입력된 전압을 공급하는 변환 회로를 전환하는 것을 특징으로 하는 전기 광학 장치.
- 제 1 항에 있어서,상기 드라이버는, 상기 입력된 전압이 변화한 것을 검지한 경우에 있어서, 상기 입력된 전압의 상기 전압 증폭률을, 상기 입력된 전압의 변화를 검지하기 전의 상기 전압 증폭률보다 크게 한 경우에는, 상기 제어 회로에 전압 증폭률 확대를 나타내는 제어 신호를 공급하고,상기 제어 회로는, 상기 전압 증폭률 확대를 나타내는 제어 신호를 수신하면, 상기 전환 장치를 제어하여, 상기 배터리로부터 입력된 전압을 공급하는 변환 회로를, 상기 제어 신호를 수신하기 전에 상기 배터리로부터 입력된 전압을 공급하고 있던 변환 회로보다, 더 낮은 전압으로 변환하는 변환 회로로 전환하는 것을 특징으로 하는 전기 광학 장치.
- 제 1 항에 있어서,상기 전압 조정 회로는, 상기 배터리로부터 입력된 전압이 소정의 전압 이상이 되어 있는지 여부를 검지하는 전압 비교 회로와, 상기 배터리로부터 입력된 전압을 승압하는 승압 회로를 구비하고, 상기 배터리로부터 입력된 전압이 상기 소정의 전압보다 낮다고 검지한 경우에는, 상기 배터리로부터 입력된 전압을, 상기 승압 회로에 의해 승압한 후에, 상기 변환 회로에 공급하는 것을 특징으로 하는 전기 광학 장치.
- 제 1 항에 있어서,상기 표시 패널에 광을 공급하는 조명 장치와,상기 조명 장치의 광원을 구동하는 광원 드라이버를 구비하되,상기 광원 드라이버는, 상기 전압 조정 회로를 갖는 것을 특징으로 하는 전기 광학 장치.
- 청구항 1 내지 청구항 4 중 어느 한 항에 기재된 전기 광학 장치를 표시부에 구비하되, 상기 전기 광학 장치에 전압을 직접 입력하는 배터리를 갖는 것을 특징으로 하는 전자 기기.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JPJP-P-2007-00159827 | 2007-06-18 | ||
JP2007159827A JP4306768B2 (ja) | 2007-06-18 | 2007-06-18 | 電気光学装置及び電子機器 |
Publications (2)
Publication Number | Publication Date |
---|---|
KR20080111404A true KR20080111404A (ko) | 2008-12-23 |
KR100982060B1 KR100982060B1 (ko) | 2010-09-13 |
Family
ID=40131667
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR1020080056843A KR100982060B1 (ko) | 2007-06-18 | 2008-06-17 | 전기 광학 장치 및 전자 기기 |
Country Status (5)
Country | Link |
---|---|
US (1) | US8125431B2 (ko) |
JP (1) | JP4306768B2 (ko) |
KR (1) | KR100982060B1 (ko) |
CN (1) | CN101330221B (ko) |
TW (1) | TWI412201B (ko) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR101040798B1 (ko) * | 2009-11-17 | 2011-06-14 | 삼성모바일디스플레이주식회사 | Dc―dc 컨버터 및 이를 이용한 유기전계발광표시장치 |
Families Citing this family (12)
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US8379012B2 (en) * | 2009-07-17 | 2013-02-19 | Atmel Corporation | Selector switch for direct connection of switched regulator to voltage inputs |
JP5498896B2 (ja) * | 2010-08-26 | 2014-05-21 | ルネサスエレクトロニクス株式会社 | 半導体チップ |
US9093867B2 (en) | 2011-09-23 | 2015-07-28 | Eaton Corporation | Power system including an electret for a power bus |
US8791831B2 (en) | 2011-09-23 | 2014-07-29 | Eaton Corporation | System including an indicator responsive to an electret for a power bus |
US20140082379A1 (en) * | 2012-09-18 | 2014-03-20 | Apple Inc. | Powering a display controller |
CN103991366A (zh) * | 2013-02-17 | 2014-08-20 | 法国圣戈班玻璃公司 | 遮阳装置、车辆、玻璃遮阳方法 |
JP6403010B2 (ja) * | 2015-02-24 | 2018-10-10 | セイコーエプソン株式会社 | 回路装置及び電子機器 |
JP6540087B2 (ja) * | 2015-02-24 | 2019-07-10 | セイコーエプソン株式会社 | 回路装置及び電子機器 |
US10755622B2 (en) * | 2016-08-19 | 2020-08-25 | Samsung Electronics Co., Ltd. | Display driver integrated circuit for supporting low power mode of display panel |
JP6776724B2 (ja) * | 2016-08-24 | 2020-10-28 | セイコーエプソン株式会社 | 半導体装置、電源回路、及び、液晶表示装置 |
EP3321923A1 (en) * | 2016-11-09 | 2018-05-16 | The Swatch Group Research and Development Ltd | Low power lcd driver circuit |
CN112885301B (zh) * | 2021-01-20 | 2022-04-01 | 维沃移动通信有限公司 | 切换电路、切换方法和显示设备 |
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JP3693464B2 (ja) * | 1997-05-22 | 2005-09-07 | ローム株式会社 | 表示パネルの駆動装置 |
JP3656495B2 (ja) * | 2000-01-25 | 2005-06-08 | セイコーエプソン株式会社 | Dc−dc昇圧方法及びそれを用いた電源回路 |
US6628252B2 (en) * | 2000-05-12 | 2003-09-30 | Rohm Co., Ltd. | LED drive circuit |
JP3843709B2 (ja) * | 2000-07-18 | 2006-11-08 | セイコーエプソン株式会社 | 電源制御装置、表示装置、携帯機器および電源供給制御方法 |
JP4165989B2 (ja) * | 2000-09-26 | 2008-10-15 | ローム株式会社 | Lcd駆動装置 |
JP2002204570A (ja) * | 2001-01-09 | 2002-07-19 | Nec Corp | Dc/dcコンバータおよび自発光ディスプレイ装置 |
JP3591496B2 (ja) * | 2001-08-13 | 2004-11-17 | ソニー株式会社 | 電源装置 |
EP1298777A1 (en) * | 2001-09-28 | 2003-04-02 | STMicroelectronics S.r.l. | High-efficiency regulated voltage-boosting device |
EP1454260B1 (de) * | 2001-10-17 | 2005-06-01 | Infineon Technologies AG | Verfahren und vorrichtung zum absichern einer exponentiations-berechnung mittels dem chinesischen restsatz (crt) |
JP2004081369A (ja) | 2002-08-23 | 2004-03-18 | Kao Corp | 吸収性物品 |
US7058234B2 (en) * | 2002-10-25 | 2006-06-06 | Eastman Kodak Company | Enhancing the tonal, spatial, and color characteristics of digital images using expansive and compressive tone scale functions |
KR100486281B1 (ko) * | 2002-11-16 | 2005-04-29 | 삼성전자주식회사 | 소비전력을 줄이는 에스티엔(Super TvistNematic) 액정 표시 장치 구동 회로 |
JP2004260931A (ja) | 2003-02-26 | 2004-09-16 | Sharp Corp | バッテリー駆動の電子機器 |
JP3759134B2 (ja) * | 2003-08-29 | 2006-03-22 | ローム株式会社 | 電源装置 |
JP2005121898A (ja) * | 2003-10-16 | 2005-05-12 | Casio Comput Co Ltd | 液晶表示装置及びプログラム |
JP3910579B2 (ja) * | 2003-12-08 | 2007-04-25 | ローム株式会社 | 表示装置用駆動装置及びそれを用いた表示装置 |
KR100669205B1 (ko) * | 2005-06-17 | 2007-01-16 | 엘지전자 주식회사 | 듀얼 평판 표시장치의 구동장치 |
KR100665369B1 (ko) * | 2006-02-09 | 2007-01-09 | 삼성전기주식회사 | 칼라 led 백라이트의 드라이브 장치 |
-
2007
- 2007-06-18 JP JP2007159827A patent/JP4306768B2/ja not_active Expired - Fee Related
-
2008
- 2008-04-17 US US12/104,509 patent/US8125431B2/en not_active Expired - Fee Related
- 2008-05-16 TW TW097118140A patent/TWI412201B/zh not_active IP Right Cessation
- 2008-06-17 CN CN200810109787XA patent/CN101330221B/zh not_active Expired - Fee Related
- 2008-06-17 KR KR1020080056843A patent/KR100982060B1/ko active IP Right Grant
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR101040798B1 (ko) * | 2009-11-17 | 2011-06-14 | 삼성모바일디스플레이주식회사 | Dc―dc 컨버터 및 이를 이용한 유기전계발광표시장치 |
Also Published As
Publication number | Publication date |
---|---|
JP4306768B2 (ja) | 2009-08-05 |
TWI412201B (zh) | 2013-10-11 |
CN101330221B (zh) | 2012-06-20 |
JP2008310211A (ja) | 2008-12-25 |
US8125431B2 (en) | 2012-02-28 |
KR100982060B1 (ko) | 2010-09-13 |
US20080309304A1 (en) | 2008-12-18 |
CN101330221A (zh) | 2008-12-24 |
TW200908503A (en) | 2009-02-16 |
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